20004022020 has 24 divisors (see below), whose sum is σ = 56011261824. Its totient is φ = 5334405856.

The previous prime is 20004021977. The next prime is 20004022033. The reversal of 20004022020 is 2022040002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20004021987 and 20004022005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166700124 + ... + 166700243.

It is an arithmetic number, because the mean of its divisors is an integer number (2333802576).

Almost surely, 2^20004022020 is an apocalyptic number.

20004022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004022020 is an abundant number, since it is smaller than the sum of its proper divisors (36007239804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20004022020 is a wasteful number, since it uses less digits than its factorization.

20004022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333400379 (or 333400377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20004022020 its reverse (2022040002), we get a palindrome (22026062022).

The spelling of 20004022020 in words is "twenty billion, four million, twenty-two thousand, twenty".